#!/usr/bin/env python
import time

class Looping:
	"Looping Class"
	n0 = 0
	def calc(self, n):
		n1 = self.n0 + (1 - 2*(n%2));
		self.n0 = n;
		return n1

if __name__ == "__main__":
	s = Looping()
	c = 0
	n = 1
	t1 = time.time()
	while c<2147483647:
		n = s.calc(n)
		c = c + 1
	t2 = time.time()
	print n, "Python\t", (t2 - t1)